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Description Recommended action
50.3 FUSER ERROR High fuser temperature Reinstall the fuser. Check connector J50
between the fuser and the product. If either is
damaged, replace the connector or fuser.
See
Fuser on page 85.
If the error persists, replace the low-voltage
power supply. See
Low-voltage power supply
(LVPS) on page 157.
50.4 FUSER ERROR Drive circuit fault 1. Check the power source. Make sure the
power source meets product
requirements.
2. Reconnect the connector J150 on the
DC controller PCA.
3. If the message persists, replace the low-
voltage power supply. See
Low-voltage
power supply (LVPS) on page 157.
50.5 FUSER ERROR The incorrect fuser was installed. CAUTION: The fuser can be hot while the
product is in use. Wait for the fuser to cool
before handling it.
1. Open the right door.
2. Remove the incompatible fuser.
3. Install the correct fuser.
4. Close the right door.
50.7 FUSER ERROR Fuser pressure-release mechanism failure 1. Reconnect the fuser-pressure release
sensor intermediate connector J60, and
connector J128 on the DC controller
PCA.
2. Run the sensor test in the sensor
monitor mode to verify that the fuser
pressure-release sensor is functioning
properly. If it is not, replace the fuser
pressure-release sensor.
3. Check the fuser pressure-release
sensor flag. If it is damaged, replace the
fuser.
4. Run the fuser pressure-release drive
test in actuator drive mode to verify that
the fuser motor is functioning properly.
If it is not, replace the fuser motor. See
Fuser motor on page 200.
5. If the message persists, replace the
fuser. See
Fuser on page 85.
50.8 FUSER ERROR Low fuser temperature. Remove the fuser and any residual paper.
Check connector J50 between the fuser and
the product. If either is damaged, replace the
connector or fuser. See
Fuser on page 85.
Table 3-14 Control-panel messages (continued)
ENWW Tools for troubleshooting 349